KR20110070738A - Apparatus of movement input appplied to steering apparatus and mobile control system using the same - Google Patents

Abstract

PURPOSE: A movement input device used for a steering apparatus and a vehicle control system using the same are provided to estimate the state of a driver by obtaining the movement information of the driver in real time. CONSTITUTION: A movement input device used for a steering apparatus comprises a detection unit(110), an estimation unit(120), and a display unit(130). The detection unit is attached on the surface of a steering apparatus(300) and detects the movement of a driver. The estimation unit estimates the movement pattern of the driver by receiving detected movement information. The display unit converts the movement pattern of the driver into a signal and displays the signal.

Description

Movement input device applied to steering device and vehicle control system using same {apparatus of movement input appplied to steering apparatus and mobile control system using the same}

The present invention relates to a motion input device and a vehicle control system applied to a steering device, and more particularly, to an apparatus and a system connected to a steering device to receive a driver's movement and output a signal for controlling a vehicle.

The steering wheel, which is a steering device, is commonly used in various devices and equipment that require direction control.

However, when it is necessary to operate the steering wheel for a long time in a high speed moving device such as a vehicle, fatigue accumulates rapidly as the driving situation requiring high concentration power continues. Therefore, a sudden situation such as drowsiness that impairs concentration can occur, which increases the probability of causing a mistake in steering wheel operation that is directly connected to the driver's life. Many emergency functions have been studied to maintain the driver's concentration.

In particular, convenience devices such as in-vehicle and alert devices to prevent drowsiness of drivers are the main development targets. The existing development target mainly observes the driver visually. In particular, attempting to monitor the drowsiness situation by observing the movement of the driver's eyes or monitoring the driver's drowsiness by directly collecting and analyzing bioelectrical signals such as the electrocardiogram of the driver collected from the electrodes mounted on the steering wheel. there was.

In order to achieve the above object, a motion input device applied to a steering device of the present invention and a vehicle control system using the same are obtained by using a motion input device connected to a steering device and using the obtained motion information. An apparatus for outputting a signal for controlling a vehicle and a system using the same are proposed.

The motion input device of the present invention according to an embodiment for solving the above problem is attached to or embedded in the surface of the steering unit for detecting the tactile movement, receiving the tactile movement information detected by the detection unit to analyze the movement pattern of the operator And an estimator for estimating a state and a display unit for converting the analyzed operator's movement pattern and the estimated operator's state into a signal in a form that a user can sense.

Vehicle control system of the present invention according to another embodiment for solving the above problem is attached to or embedded in the surface of the steering unit for detecting the tactile movement, the tactile movement information detected by the detection unit receives the movement pattern analysis of the operator And an estimator for estimating a state and a display unit for converting and displaying the analyzed operator's movement pattern and the estimated operator's state into a signal that can be sensed by a user. An extraction unit for extracting an operator manipulation signal by analyzing one or more of the tactile motion information detected by the detection unit, the movement pattern information of the operator analyzed by the estimator, and the operator state information estimated by the estimation unit, and the extracted unit Generates control signals for external devices according to operator's operation signals And a control device including a control unit for transmission.

According to the motion input device applied to the steering apparatus and the vehicle control system using the same, the operator's state can be estimated by obtaining the operator's movement information in real time through the tactile signal. Furthermore, a signal for controlling the vehicle may be output by using the acquired operator's movement and state.

1 is a functional block diagram of a motion input device of the present invention.
2 is a graph relating to the characteristics of the resistive conductive yarn included in the detection unit of the present invention.
3 is a block diagram illustrating a functional block of an estimator as an embodiment of the present invention.
4A to 4B illustrate examples of implementing the steering unit and the detection unit as one embodiment of the present invention.
5 is a diagram illustrating implementations of a motion input device of the present invention.
6 is a functional block diagram of a vehicle control system including a motion input device of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

Haptic technology can be used to estimate the operator's driving state or predict drowsiness by monitoring the deformation of the steering apparatus surface in real time within the limited displacement of the steering apparatus surface. When it is determined that the operator is in a drowsy state or the like, the haptic signal is output by using a power generator such as a motor built into the outer surface of the steering apparatus. The operator can then detect it by touching and call attention and prevent drowsiness.

In addition, by using a motion input device applying haptic technology for manipulation of hands-free, music playback, etc., which are widely used on the steering wheel, it is possible to perform a desired manipulation by rubbing, pressing or pulling.

The above methods provide convenience to the operator by receiving information in parallel with buttons and the like arranged on the existing steering apparatus.

On the other hand, the haptic function of the steering device is not limited to the inner surface of the steering device, and is manufactured in the form of a film such as vinyl of various materials having elasticity and original restoring force within a prescribed range and can be applied to a handle cover or the like.

In order to sense and deform the surface of the steering device due to the palpation, a wire or strip of conductive yarn or a material having equivalent conductivity characteristics may be woven, embedded or attached to the handle cover. In addition, the above steering device is not limited to the vehicle, it can be applied to all of the steering wheel-type steering device, in particular can be utilized for the safety of the user who needs to operate the steering wheel-type steering device that requires long-term precision operation.

The movement input device using the conductive yarn is easy to be combined with the existing handle part standard, and the electrical conductivity is relatively excellent by using the conductive yarn, so it is easy to convert the physical change of the attachment site into the electrical signal. By generating a control input signal, it is possible to more actively utilize a controller such as a car in daily life.

1 is a functional block diagram of a motion input device of the present invention.

Referring to FIG. 1, the motion input device 100 of the present invention may include a detector 110, an estimator 120, and a display 130 in a system using a steering device 300. In addition, the transmitter 140 may be further provided.

The steering device 300 is a device for steering or manipulating a vehicle. In general, the steering device 300 is composed of a handle.

The detector 110 detects an operator's palpation movement. The detector 110 may be configured to include a resistive conductive yarn or the like to detect the movement of the operator's palpation in contact with the steering apparatus 300. The configuration for detecting the movement of the palpation such as the resistive conductive yarn is preferably to be attached to or embedded in the surface of the steering device (300). It is also preferable to further include a configuration for converting the motion information detected by the resistive conductive yarn or the like into an electrical signal to enable electronic processing.

Referring to FIG. 2, the resistive conductive yarn has a characteristic in which a length of the conductive yarn and a resistance value of the conductive yarn vary linearly. Therefore, the electrical signal can be detected that the length of the conductive yarn is stretched by the operator's palpation movement.

When the conductive conductive yarns constituting the detector 110 are composed of several conductive yarns, the palpation movement can be detected for each conductive yarn zone.

The estimator 120 estimates the operator's movement and state by using the operator's movement information detected by the detector 110.

The estimation of motion and state includes a method of associating a motion information pattern detected by using behavior analysis or statistical analysis with an operator's motion and state.

A converter may be further provided for AD conversion of the detected operator's motion information, which is an analog signal, for digital signal processing of the information.

The display unit 130 converts the estimated operator's movement into a signal in a form that a user can sense and displays the same. Signals that can be sensed by the user include an image signal, an audio signal, an acoustic signal, or a vibration signal. The converted signal is visually displayed on the screen and the audio is displayed using a speaker.

The transmitter 140 transmits motion information detected by the detector 110 and / or state information of an operator estimated by the estimator 120 to an external device. Wired or wireless communication methods can be used for the transmission. Communication standards that can be used for wired or wireless communication include serial communication, Bluetooth communication, Zigbee communication or mobile communication.

3 is a block diagram illustrating a functional block of an estimator as an embodiment of the present invention.

Referring to FIG. 3, the estimator 120 of the present invention may include an inputter 121, a pattern analyzer 122, a grip detector 123, and a fatigue analyzer 124. It can be provided further.

The input unit 121 filters the change pattern of the resistance value or the voltage value of the conductive conductive yarn by using the electrical signal input to the conductive input.

The pattern analyzer 122 analyzes the change pattern of the resistance value or the voltage value filtered by the input device, converts the pattern into a movement pattern of the user, and determines whether the movement pattern is a normal pattern or an abnormal pattern. The movement pattern of the user becomes motion information and is transmitted to the display unit 130 and the transmission unit 140.

The grip finder 123 finds the steering wheel handle that the operator grips when the change in the filtered resistance value or the voltage value is greater than or equal to a certain value in order to increase the accuracy of the pattern analysis of the pattern analyzer 122 and the fatigue analyzer 124. .

For example, in the case of sleepiness or when it is impossible to adjust the handle, the movement pattern is abnormally changed so that the change value exceeds a certain value and the grip detector 123 detects the grip and determines the grip position and the position of the grip. do. When the user does not maintain the grip, the user may be warned through the display unit 130.

The grasped information is transmitted to the fatigue analyzer 124 and the pattern analyzer 122. Accordingly, the pattern analyzer 122 may further analyze the movement pattern by referring to the information received from the grip searcher.

The fatigue analyzer 124 analyzes the operator's fatigue and the user's state by using the movement pattern analyzed by the pattern analyzer and the information obtained by the grip searcher. The analyzed fatigue degree is transmitted to the display unit 130 and the transmission unit 140. The display unit 130 may provide the analyzed fatigue degree information to the user.

In addition, the transducer converts the movement information of the pattern analyzer 122 and the operator fatigue information and the state information of the fatigue analyzer 124 into digital signals and transmits the signals to the display unit 130 and the transmission unit 140 for A / D conversion. do.

4A to 4B illustrate examples of implementing a steering device and a detector as an embodiment of the present invention.

Referring to FIG. 4A, the detector 110 of the present invention may include a conductive yarn 111 and a signal processor 112.

The conductive yarns 111 may be implemented with conductive conductive yarns and have the characteristics as shown in FIG. 2. The conductive yarn may be implemented in a form attached to the steering device 300.

When an operator performs an operation of a device such as a vehicle using the steering device 300, the operator operates the steering device 300. In this case, the length of the conductive yarn 111 attached to the steering apparatus 300 may be changed, and the movement of the operator may be input using the conductive yarn 111.

For example, referring to FIG. 4B, when the operator operates the steering device 300, the operator may input movement information through an operation of pulling or pushing in a clockwise or counterclockwise direction while holding a specific portion of the steering device 300. Can be.

In addition, the steering apparatus 300 may be operated by other methods to perform an operation on an auxiliary function other than the steering function.

For example, by twisting the handle, it inputs to perform a function in addition to a steering function.

5 is a diagram illustrating implementations of a motion input device of the present invention.

As shown in FIG. 5A, only the steering apparatus 300 and the detector 110 may be exposed to the outside, and the estimator 120 and the transmitter 140 may be embodied in the steering apparatus 300. . Although not shown, the display unit 130 may be embedded in the steering device 300 or arranged to receive and display a signal from the outside.

As shown in FIG. 5B, the detector 110 is implemented in the form of a cover attached to the steering apparatus 300, and the estimator 120, the display 130, and the transmitter 140 are the detector 110. It can be implemented as an external device connected with.

As shown in FIG. 5C, the detector 110 may be implemented in the form of a disposable attachment.

Information between the detector 110 and the estimator 120 or the transmitter 140 may be transmitted by wire or wirelessly. In addition, information may be transmitted between the estimator 120 and the display 130 by wire or wirelessly.

The detection unit 110 formed of a resistive conductive yarn may include a conductive fiber and an elastic yarn.

The conductive fiber may be implemented with carbon fiber or metal wire.

The conductive fiber and the elastic yarn of the detection unit 110 may be formed in the form of a line made by twisting each other, the braided form by turning the conductive fiber around the elastic yarn or the braided form by turning the conductive fiber in the opposite direction to the double around the elastic yarn. .

The method of connecting the conductive yarn belonging to the detection unit 110 to the steering apparatus 300 includes a method that is manufactured in a pattern independent of the steering apparatus 300 and attached to the steering apparatus 300, as well as on the outer surface of the steering apparatus 300. Can be connected in a built-in form.

When the conductive yarn of the detection unit 110 is manufactured in a pattern independent of the steering device 300, the conductive yarn may be attached to a solid material such as a stretchable plastic material, or may be in the form of a composite pattern or a single pattern including a resistive conductive yarn in the solid material. Can be made.

When manufacturing the conductive yarn of the detection unit 110 in the form of the built-in the outer surface of the steering device 300, the resistive conductive yarn is embedded in the steering device 300 with a configuration for wired or wireless communication and the outer layer of the elastic material thereon The steering apparatus 300 is manufactured by covering.

In addition, by analyzing the operation pattern of the operator's steering device 300, it is possible to determine the location of the main palpation so that the conductive yarn is embedded in the position.

In addition, the detector 110 may further include a buffer connection lead.

6 is a functional block diagram of a vehicle control system including a motion input device of the present invention.

Referring to FIG. 6, the vehicle control system of the present invention may include a motion input device 100, a control device 200, and a steering device. The control device 200 may be configured to include an extraction unit 210 and the control unit 220.

The motion input device 100 may include a detector 110, an estimator 120, and a display 130, and may further include a transmitter 140. Steering device 300 may generally be implemented as a handle or the like. Detailed descriptions of the motion input device 100 and the steering device 300 will be omitted.

The control device 200 receives the motion information detected by the motion input device 100 or the estimation information about the motion and the state of the operator and outputs a signal for controlling the vehicle.

The extractor 210 extracts information and signals related to the vehicle control from the motion information transmitted from the motion input device 100 or the estimated information about the motion and state of the operator.

The controller 220 receives the information and the signal related to the vehicle control extracted by the extraction unit 210 and converts the signal into a signal for controlling the vehicle and outputs the signal.

That is, the control device 200 receives the information related to the movement of the operator from the motion input device 100 and extracts only the information directly or indirectly related to the vehicle control and realizes the vehicle control using the same.

Therefore, the vehicle control system of the present invention may receive a signal of the operator's palpation, and may output a signal for alerting the operator's state or a signal for controlling the vehicle.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

Claims (14)

A detection unit attached to or embedded in the surface of the steering device to detect the palpation movement;
An estimator configured to receive motion information detected by the detector and estimate an operator's movement pattern and state; And
And a display unit for converting the analyzed operator's movement pattern and the estimated operator's state into a signal in a form that a user can sense.
The motion input device of claim 1, wherein the detection unit detects the motion of the palpation using a resistive conductive yarn and converts the motion into an electrical signal.
The motion input device of claim 1, wherein the display unit converts the estimated operator's state into at least one of a video signal, an audio signal, an audio signal, and a vibration signal.
The apparatus of claim 1, further comprising: a transmission unit configured to transmit at least one of the palpation motion information detected by the detection unit, the movement pattern information of the operator analyzed by the estimation unit, and the operator state information estimated by the estimation unit to an external device. Motion input device comprising a.
The motion input device of claim 1, wherein the estimator and the display unit are embedded in the steering device.
The method of claim 1, wherein the estimating unit
An input unit for filtering a movement pattern by using the palpation movement information received from the detection unit;
A pattern analyzer configured to analyze the movement pattern filtered by the input unit to determine whether the operator's movement pattern is a normal pattern;
A grip searcher for searching for a grip position or a grip position of an operator when a change value of the movement pattern filtered by the input device exceeds a specific value;
And a fatigue analyzer for estimating the fatigue state of the operator by combining the determination result of the pattern analyzer and the search result of the grip searcher.
The motion input device of claim 6, wherein the estimator further comprises a converter for converting an output signal to analog to digital (A / D).
A detection unit attached to or embedded in the surface of the steering device to detect the palpation motion, an estimator for receiving the palpation motion information detected by the detection unit to estimate the motion pattern and the operator's motion pattern, and the motion pattern and the estimated motion pattern of the analyzed operator A motion input device including a display unit for converting and displaying a state of an operator into a signal in a form that a user can sense; And
Extracting an operator manipulation signal by analyzing one or more of the palpation movement information detected by the detection unit transmitted from the motion input device, motion pattern information of the operator analyzed by the estimator, and state information of the operator estimated by the estimator; And a control unit including an extraction unit and a control unit for generating and transmitting a control signal for an external device according to the extracted operator manipulation signal.
The vehicle control system of claim 8, wherein the detection unit detects the movement of the prompt by using a resistive conductive yarn and converts the motion into an electrical signal.
The vehicle control system of claim 8, wherein the display unit converts the estimated operator's state into at least one of an image signal, an audio signal, an acoustic signal, and a vibration signal.
The apparatus of claim 8, wherein the at least one of the palpation motion information detected by the detector, the motion pattern information of the operator analyzed by the estimator, and the state information of the operator estimated by the estimator is transmitted to a control device or an external device. Vehicle control system further comprises a transmitter.
The vehicle control system of claim 8, wherein the estimator and the display unit are embedded in the steering apparatus.
The method of claim 8, wherein the estimating unit
An input unit for filtering a movement pattern by using the palpation movement information received from the detection unit;
A pattern analyzer configured to analyze a movement pattern filtered by the input unit to determine whether the operator's movement pattern is a normal pattern;
A grip searcher for searching for a grip position or a grip position of an operator when a change value of the movement pattern filtered by the input device exceeds a specific value;
And a fatigue analyzer for estimating the fatigue state of the operator by combining the determination result of the pattern analyzer and the search result of the grip searcher.
The vehicle control system of claim 13, wherein the estimator further comprises a converter for converting an output signal to analog to digital (A / D).

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